Molluscum contagiosum is a harmless but contagious skin infection caused by a poxvirus called the molluscum contagiosum virus (MCV). It makes small, smooth, ...
MOOKP is a special surgery for people who are blind from severe corneal and ocular surface disease and have very dry, scarred eyes. Surgeons take a small piece ...
A Mittendorf dot is a tiny, round, speck on the back surface of the lens (the clear focusing structure inside your eye). It is a harmless leftover from a baby ...
Minimally invasive glaucoma surgery (MIGS) is a group of very small, targeted eye operations that lower eye pressure (intraocular pressure, IOP) with much less ...
Retinal detachment means the thin, light-sensing layer at the back of your eye (the retina) gets lifted or pulled away from the healthy layer underneath it ...
Miller Fisher syndrome (MFS) is a rare immune-related nerve disorder. It is a variant of Guillain-Barré syndrome (GBS). In MFS, the body’s defense system ...
Millard–Gubler syndrome is a pattern of symptoms that happens when a small area in the front part of the pons (a short, thick section of the brainstem that ...
Milkweed corneal toxicity is an eye injury caused when the milky sap (latex) from certain “milkweed” plants gets into the eye. The sap contains natural ...
Migratory Serpiginous Corneal Epitheliopathy is a newly described, non-infectious corneal surface disorder. “Migratory” means the patches change location over ...
Microsporidia are extremely tiny germs that live inside the cells of people and animals. They make tough spores (like tiny seeds) that help them survive in the ...
Microspherophakia means the natural lens inside the eye is smaller than usual and more round (spherical) than normal. In a typical eye, the lens is like a ...
Chorioretinopathy is an umbrella term for conditions that harm the choroid (the eye’s blood-vessel layer) and the retina (the light-sensing film). When this ...
Microcephaly means a baby’s or child’s head is smaller than expected for their age and sex. Doctors measure the head with a soft measuring tape and compare the ...
Methamphetamine-induced keratitis is inflammation and injury of the clear front window of the eye (the cornea) that happens in people who use methamphetamine ...
Metastasis to the extraocular muscles means cancer cells from somewhere else in the body travel through the bloodstream and settle inside one or more of the ...
Metabolic keratopathy means your cornea (the clear front window of the eye) is getting sick because abnormal substances build up inside it, or because the ...
Merkel cell carcinoma (MCC) is a rare but very aggressive skin cancer that starts in the top layer of the skin. Under the microscope it looks like a “small ...
Pseudomembranous conjunctivitis is a type of severe eye surface inflammation. The thin skin that lines the inside of your eyelids and covers the white of your ...
Membranous conjunctivitis is a severe form of “pink eye” in which a sheet of tough material (a membrane or pseudo-membrane) forms on top of the moist surface ...
Melkersson–Rosenthal Syndrome (MRS) is a rare condition that mainly affects the face and mouth. Doctors describe a classic “triad” of features:...
